From d36c0c538a545fac5d9db6ba65c525246d4efa95 Mon Sep 17 00:00:00 2001
From: Feng Xiao <xfxyjwf@gmail.com>
Date: Wed, 29 Mar 2017 14:32:48 -0700
Subject: Down-integrate from google3.

---
 java/core/src/main/java/com/google/protobuf/Descriptors.java | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

(limited to 'java/core/src/main/java/com/google/protobuf/Descriptors.java')

diff --git a/java/core/src/main/java/com/google/protobuf/Descriptors.java b/java/core/src/main/java/com/google/protobuf/Descriptors.java
index 38346f15..75b16fe3 100644
--- a/java/core/src/main/java/com/google/protobuf/Descriptors.java
+++ b/java/core/src/main/java/com/google/protobuf/Descriptors.java
@@ -30,9 +30,10 @@
 
 package com.google.protobuf;
 
+import static com.google.protobuf.Internal.checkNotNull;
+
 import com.google.protobuf.DescriptorProtos.*;
 import com.google.protobuf.Descriptors.FileDescriptor.Syntax;
-
 import java.lang.ref.WeakReference;
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -682,9 +683,7 @@ public final class Descriptors {
 
     /** Determines if the given field name is reserved. */
     public boolean isReservedName(final String name) {
-      if (name == null) {
-        throw new NullPointerException();
-      }
+      checkNotNull(name);
       for (final String reservedName : proto.getReservedNameList()) {
         if (reservedName.equals(name)) {
           return true;
-- 
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